#include <stdio.h>
#include <stdlib.h>

/*由八个n整数形成奇特的立方体*/

void main()
{
    int a[9],ii=0,i,a1,a2,a3,a4,b1,b2,b3,b4,flag;
    for(i=1;i<=8;i++)
    {
        printf("Plese enter [%d] number:",i);
        scanf("%d",&a[i]);
        ii+=a[i];
    }
    printf("*************************\n");
    if(ii%2)
    {
        printf("Sorry they can't be constructed required cube!\n");
        exit(0);
    }
    for(flag=0,a1=1;a1<=8;a1++)
      for(a2=1;a2<=8;a2++)
        if(a2!=a1)
          for(a3=1;a3<=8;a3++)
            if(a3!=a2&&a3!=a1)
              for(a4=1;a4<=8;a4++)
                if(a4!=a3&&a4!=a2&&a4!=a1)
                  for(b1=1;b1<=8;b1++)
                    if(b1!=a4&&b1!=a3&&b1!=a2&&b1!=a1)
                      for(b2=1;b2<=8;b2++)
                        if(b2!=b1&&b2!=a4&&b2!=a3&&b2!=a2&&b2!=a1)
                          for(b3=1;b3<=8;b3++)
                            if(b3!=b2&&b3!=b1&&b3!=a4&&b3!=a3&&b3!=a2&&b3!=a1)
                              for(b4=1;b4<=8;b4++)
                                if(b4!=b3&&b4!=b2&&b4!=b1&&b4!=a4&&b4!=a3&&b4!=a2&&b4!=a1)
                            if(a[b1]+a[b2]+a[b3]+a[b4]==ii/2
                              &&a[a1]+a[a2]+a[b1]+a[b2]==ii/2
                              &&a[a1]+a[a4]+a[b1]+a[b4]==ii/2)
                              {
                                flag = 1;
                                goto out;
                              }
                              out:
                              if(flag){
                                printf("They can be constructed required cube s follow:\n");
                                printf("        /%2d.............../%2d\n",a[a4],a[a3]);
                                printf("       %2d/..............%2d/| \n",a[a1],a[a2]);
                                printf("         |  |              |  |\n");
                                printf("         |  |              |  |\n");
                                printf("         |%2d|            |  |%2d\n",a[b4],a[b3]);
                                printf("         /..............-/\n");
                                printf("      %2d/.............%2d/\n",a[b1],a[b2]);

                              }
                              else printf("Sorry they can't de constructed required cube!\n");

}
